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Greeley [361]
3 years ago
13

Liam is a tyre fitter. it takes him 56 minutes to fit 4 tyres to a van.

Mathematics
2 answers:
dalvyx [7]3 years ago
6 0

I would first solve how long it takes for 1 tyres to make life easier. Just solve 56 divided by 4, which means that Liam takes 14 minutes to put one tyres into the van. For part a, I don't quite understand the 3 vans part, but you know he 's putting 12 tyres into a van, so multiply 12 by 14 to get 156. Part B gives you time instead of tyres. Solve it practically the same... 42 divided 14  is 3, so he fits 3 tyres in 42 minutes,

Tems11 [23]3 years ago
6 0

Answer:

Part a) 168\ minutes  or  2\ hours\ 48\ minutes

Part b) 3\ tyres

Step-by-step explanation:

Part a) Using a proportion

\frac{56}{4}\frac{minutes}{tyres}=\frac{x}{12}\frac{minutes}{tyres} \\ \\x=12*56/4\\ \\x=168\ minutes

168\ minutes=2.8\ hours=2\ hours\ 48\ minutes

Part b) Using a proportion

\frac{56}{4}\frac{minutes}{tyres}=\frac{42}{x}\frac{minutes}{tyres}\\ \\x=4*42/56\\ \\x=3\ tyres

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Step-by-step explanation:

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Keywords: area, unit rate

Learn more about areas at:

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